/*
 * Copyright (c) 2024 -present FengJinjian ( 751965763@qq.com )

 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
package edu.vital.energy.longevity.ch09.config.listener;

import jakarta.servlet.ServletRequestEvent;
import jakarta.servlet.ServletRequestListener;
import jakarta.servlet.annotation.WebListener;
import jakarta.servlet.http.HttpServletRequest;

/**
 * RequestMetricsListener
 *
 * @version 1.0.1
 * @auther FengJinJian
 * @date 2025/4/29 10:09
 */
@WebListener
public class RequestMetricsListener implements ServletRequestListener {

    private static final ThreadLocal<Long> startTimeHolder = new ThreadLocal<>();

    @Override
    public void requestInitialized(ServletRequestEvent sre) {
        startTimeHolder.set(System.currentTimeMillis());
    }

    @Override
    public void requestDestroyed(ServletRequestEvent sre) {
        // 获取请求开始时间
        long startTime = startTimeHolder.get();
        // 计算请求持续时间
        long duration = System.currentTimeMillis() - startTime;

        // 获取HttpServletRequest对象

         // 获取请求的URI

        // 获取请求的方法


        // 打印请求的URI、方法、持续时间


        // 移除请求开始时间

    }
}
